3866241 has 16 divisors (see below), whose sum is σ = 5390528. Its totient is φ = 2462400.

The previous prime is 3866237. The next prime is 3866243. The reversal of 3866241 is 1426683.

3866241 = 114² + 115² + ... + 235².

It is not a de Polignac number, because 3866241 - 2² = 3866237 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3866199 and 3866208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3866243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6486 + ... + 7056.

It is an arithmetic number, because the mean of its divisors is an integer number (336908).

Almost surely, 2^3866241 is an apocalyptic number.

It is an amenable number.

3866241 is a deficient number, since it is larger than the sum of its proper divisors (1524287).

3866241 is a wasteful number, since it uses less digits than its factorization.

3866241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672.

The product of its digits is 6912, while the sum is 30.

The square root of 3866241 is about 1966.2759216346. The cubic root of 3866241 is about 156.9505977336.

The spelling of 3866241 in words is "three million, eight hundred sixty-six thousand, two hundred forty-one".